e. Undo the capillary coil of the thermostat and teed phial into thermostat pack in H.E. Ensure that routing of
capillary is clear of the case.
f. Connect the main gas supply to the length of pipe fitted to the boiler main gas cock. Ensure that the tap is in a
position suitable for its operation.
Page 9
Installation Section – Page 10
g. Connect the short lengths of pipe, previously fitted to the water flow and return connections, to the system
pipework.
h. Open all water valves and thoroughly flush the system.
i. Fill and vent the water system and test for leaks, rectify if necessary.
j. Unscrew the nuts and remove and discard the two metal legs at the bottom of the boiler.
7. WIRING - See Figures
5
to
11
Care must be taken to ensure that all wiring to the boiler is kept clear of sharp edges and hot surfaces.
The boiler terminal strip is not designed to accept wiring from all the on-site system controls and therefore, the
installer will need to incorporate a suitable junction box. The principle of wiring the boiler and its controls is shown
in
Figure 5
. However, the layout of a particular system will itself govern the most economical location for the
junction box and its terminals.
FIG. 5 PRINCIPLE OF WIRING
Wire the boiler and system controls as illustrated in
Figures
7
,
8
,
9
,
10
and
11
depending on the type of system installed. The wiring arrangements shown outline
only the basic control requirements, and will therefore require on-site interpretation of the various boiler
installation arrangements.
Figure 10
illustrates a system with a zone valve which requires an electrical supply to motor it both to the open and
closed positions. Zone valves which require an electrical supply to open them but not to close them, should be wired
in a similar manner but ignoring the closed connection from the room thermostat. For this type of valve, a room
thermostat with a single pole contact should only be used. Certain zone valves may require an additional connection
to the auxilIary switch (shown dotted). This would apply to those valves which internally are not suitable for giving
an open signal from the normal opening voltage supply.
If a Potterton EP 2000/3000 Programmer time control is not being fitted, but a three terminal time clock is to be
installed to control the systems illustrated in Figures
7
,
8
,
9
,
l0
or
11
the time clock should be wired as follows:
Live to Time Clock Live
Neutral to Time Clock Neutral
Earth to Time Clock Earth
Wires normally connected to EP 2000/3000
Programmer Terminals 3 and 4 to Time Clock Switch
A low limit thermostat can be installed to override the ‘OFF’ setting of the time control. Where an EP 2000/ 3000 or
equivalent Programmer is installed, a double pole thermostat or a single pole thermostat with change over contacts
may be necessary; for the electrical connections and type required, see the relevant system wining diagram. Where
only a time clock is fitted, the thermostat need only be a single pole type with its contact wired in parallel with the
clock switch.
If a three way (proportioning diverter) valve with a mid-position is being fitted in the system, the following
instructions must be adhered to in addition to the valve manufacturers wiring information.
1. Neutral and earth connections must be made to boiler terminals N and E.
2. The switches supply from the system control circuit must be connected to boiler terminal L.
3. The live supply to the pump must be taken from the supply to boiler terminal L.
Summary of Contents for Flamingo RS40
Page 6: ...FIG 2 PRESSURE LOSS ACROSS BOILER Page 4 DATA SECTION Page 5 ...
Page 14: ...FIG 8 GRAVITY HOT WATER WITH TEMPERATURE CONTROLLED AND PUMPED CENTRAL HEATING ...
Page 18: ...Page 13 ...
Page 29: ...FIG 15 F F D AND THERMOCOUPLE Page 21 Service Section Page 22 FIG 16 SOLENOID VALVE ...
Page 31: ...Back page Page 23 ...
